NTISthis.com

Evidence Guide: MARL017 - Apply intermediate principles of naval architecture

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MARL017 - Apply intermediate principles of naval architecture

What evidence can you provide to prove your understanding of each of the following citeria?

Calculate shipboard areas, volumes and displacement

  1. Simpson’s Rules are applied to find typical and non-conforming shipboard areas
  2. Simpson’s Rules are applied to calculate water plane areas or transverse sectional areas to determine underwater volumes
  3. Simpson’s Rules are applied to immersed tonnes per centimetre values to determine displacement
  4. Tonnes per centimetre is applied to determine change in mean draught due to addition or removal of mass
Simpson’s Rules are applied to find typical and non-conforming shipboard areas

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Simpson’s Rules are applied to calculate water plane areas or transverse sectional areas to determine underwater volumes

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Simpson’s Rules are applied to immersed tonnes per centimetre values to determine displacement

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Tonnes per centimetre is applied to determine change in mean draught due to addition or removal of mass

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate coefficients of form and changes in draught associated with fluid density

  1. Application of coefficients of form are identified and explained
  2. Problems are solved involving coefficients of form
  3. Impact of hull modification on hull form coefficients is explained
  4. Problems of coefficients of form are solved following change in length by mid body insertion/removal
  5. Relationship between underwater volume/draught and fluid density is explained
  6. Application of freeboard markings for Load Line Rules is explained
  7. Density correction formula is defined
  8. Change in mean draught due to change in density is calculated
Application of coefficients of form are identified and explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Problems are solved involving coefficients of form

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Impact of hull modification on hull form coefficients is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Problems of coefficients of form are solved following change in length by mid body insertion/removal

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Relationship between underwater volume/draught and fluid density is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Application of freeboard markings for Load Line Rules is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Density correction formula is defined

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Change in mean draught due to change in density is calculated

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Solve stability problems

  1. Effects of adding, removing and transferring mass on board or from a vessel are explained
  2. Calculations are performed to solve problems involving suspended masses
  3. Positive, neutral and negative stability are distinguish from each other
  4. How centre of gravity is calculated for redistribution, addition and/or removal of masses is explained, including the use of derricks
  5. Problems are solved involving vertical and horizontal movement of masses to calculate KG and GM for typical vessel loaded conditions, together with true shift in vessel centre of gravity between specified conditions and small angle transverse stability
  6. Vessel righting moment and GZ are explained
  7. Calculations are performed to solve problems of small angle transverse stability
  8. Purpose of an Inclining Experiment is explained
  9. Formula for determining initial stability characteristics is applied
  10. Calculations are performed to solve problems using Inclining Experiments
Effects of adding, removing and transferring mass on board or from a vessel are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculations are performed to solve problems involving suspended masses

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Positive, neutral and negative stability are distinguish from each other

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

How centre of gravity is calculated for redistribution, addition and/or removal of masses is explained, including the use of derricks

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Problems are solved involving vertical and horizontal movement of masses to calculate KG and GM for typical vessel loaded conditions, together with true shift in vessel centre of gravity between specified conditions and small angle transverse stability

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Vessel righting moment and GZ are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculations are performed to solve problems of small angle transverse stability

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Purpose of an Inclining Experiment is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Formula for determining initial stability characteristics is applied

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculations are performed to solve problems using Inclining Experiments

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate loss of transverse stability due to fluid free surface

  1. Principles of liquid free surface are explained
  2. Principles of metacentric height are explained
  3. Centre of gravity solid is distinguished from centre of gravity fluid
  4. Application of the second moment of area using parallel axis theorem to obtain free surface moment of inertia and use of density correction between vessel and free surface fluids is explained
  5. Calculations are performed to solve problems of liquid free surface for simple compartments, including correction for free surface on metacentric height [GM] and fluid mass on centre of gravity [KG]
Principles of liquid free surface are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Principles of metacentric height are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Centre of gravity solid is distinguished from centre of gravity fluid

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Application of the second moment of area using parallel axis theorem to obtain free surface moment of inertia and use of density correction between vessel and free surface fluids is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculations are performed to solve problems of liquid free surface for simple compartments, including correction for free surface on metacentric height [GM] and fluid mass on centre of gravity [KG]

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate centroids and solve problems of hydrostatics

  1. Importance of area and volume centroids and methods of determining KG, LCF, LCB and bulkhead area centroids is explained
  2. Calculations are performed to solve problems related to area and volume centroids
  3. Methods of calculating pressures and loads on typical tank structures for different filling rates, accidental flooding or tank testing are explained
  4. Use of flat panel stiffeners and shear force reactions applicable to vertical bulkheads is explained
  5. Calculations are performed to solve problems in hydrostatics relating to pressure and loads on ship structures, including bulkheads, stiffeners and shear forces
Importance of area and volume centroids and methods of determining KG, LCF, LCB and bulkhead area centroids is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculations are performed to solve problems related to area and volume centroids

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Methods of calculating pressures and loads on typical tank structures for different filling rates, accidental flooding or tank testing are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Use of flat panel stiffeners and shear force reactions applicable to vertical bulkheads is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculations are performed to solve problems in hydrostatics relating to pressure and loads on ship structures, including bulkheads, stiffeners and shear forces

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Solve problems involving propellers and powering

  1. Factors that influence the speed of advance are explained
  2. Calculations are performed to solve problems of single screw vessels
  3. Relationships between propulsive coefficient, quasi propulsive coefficient and related powers together with typical values of losses for transmission, hull and propeller are explained
  4. Components of hull resistance are explained
  5. Calculations are performed to show impact of resistance augmentation and thrust deduction factors on powering of full size vessels
  6. Causes, effects and methods of reducing cavitation are explained
Factors that influence the speed of advance are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculations are performed to solve problems of single screw vessels

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Relationships between propulsive coefficient, quasi propulsive coefficient and related powers together with typical values of losses for transmission, hull and propeller are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Components of hull resistance are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculations are performed to show impact of resistance augmentation and thrust deduction factors on powering of full size vessels

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Causes, effects and methods of reducing cavitation are explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculate voyage and daily fuel consumptions

  1. Admiralty coefficient for fuel consumption is stated taking account of values for ship speed, shaft power and displacement
  2. Vessel fuel consumption is calculated using admiralty coefficient
  3. Calculations are performed to show relationship between fuel consumption and displacement
  4. Calculations are performed to show relationship between daily fuel consumption and speed
  5. Calculations are performed to show relationship between voyage consumption, speed and distance travelled
  6. Voyage and daily fuel consumption are calculated taking into account propulsion, domestic loads and fuel reserve requirements
Admiralty coefficient for fuel consumption is stated taking account of values for ship speed, shaft power and displacement

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Vessel fuel consumption is calculated using admiralty coefficient

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculations are performed to show relationship between fuel consumption and displacement

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculations are performed to show relationship between daily fuel consumption and speed

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Calculations are performed to show relationship between voyage consumption, speed and distance travelled

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Voyage and daily fuel consumption are calculated taking into account propulsion, domestic loads and fuel reserve requirements

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Solve problems related to symmetrical flooding

  1. Volume lost-volume gained relationship for flooded compartments is explained
  2. Modified volume lost by compartment subdivision is explained using a horizontal flat
  3. Modified volume lost by compartment permeability is explained, including consideration of cargo stowage factor and relative density details
  4. Problems of symmetrical flooding of simple box-shaped and standard hull forms involving flooding above and below horizontal subdivisions and different permeabilities are solved
Volume lost-volume gained relationship for flooded compartments is explained

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Modified volume lost by compartment subdivision is explained using a horizontal flat

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Modified volume lost by compartment permeability is explained, including consideration of cargo stowage factor and relative density details

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Problems of symmetrical flooding of simple box-shaped and standard hull forms involving flooding above and below horizontal subdivisions and different permeabilities are solved

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Calculate shipboard areas, volumes and displacement

1.1

Simpson’s Rules are applied to find typical and non-conforming shipboard areas

1.2

Simpson’s Rules are applied to calculate water plane areas or transverse sectional areas to determine underwater volumes

1.3

Simpson’s Rules are applied to immersed tonnes per centimetre values to determine displacement

1.4

Tonnes per centimetre is applied to determine change in mean draught due to addition or removal of mass

2

Calculate coefficients of form and changes in draught associated with fluid density

2.1

Application of coefficients of form are identified and explained

2.2

Problems are solved involving coefficients of form

2.3

Impact of hull modification on hull form coefficients is explained

2.4

Problems of coefficients of form are solved following change in length by mid body insertion/removal

2.5

Relationship between underwater volume/draught and fluid density is explained

2.6

Application of freeboard markings for Load Line Rules is explained

2.7

Density correction formula is defined

2.8

Change in mean draught due to change in density is calculated

3

Solve stability problems

3.1

Effects of adding, removing and transferring mass on board or from a vessel are explained

3.2

Calculations are performed to solve problems involving suspended masses

3.3

Positive, neutral and negative stability are distinguish from each other

3.4

How centre of gravity is calculated for redistribution, addition and/or removal of masses is explained, including the use of derricks

3.5

Problems are solved involving vertical and horizontal movement of masses to calculate KG and GM for typical vessel loaded conditions, together with true shift in vessel centre of gravity between specified conditions and small angle transverse stability

3.6

Vessel righting moment and GZ are explained

3.7

Calculations are performed to solve problems of small angle transverse stability

3.8

Purpose of an Inclining Experiment is explained

3.9

Formula for determining initial stability characteristics is applied

3.10

Calculations are performed to solve problems using Inclining Experiments

4

Calculate loss of transverse stability due to fluid free surface

4.1

Principles of liquid free surface are explained

4.2

Principles of metacentric height are explained

4.3

Centre of gravity solid is distinguished from centre of gravity fluid

4.4

Application of the second moment of area using parallel axis theorem to obtain free surface moment of inertia and use of density correction between vessel and free surface fluids is explained

4.5

Calculations are performed to solve problems of liquid free surface for simple compartments, including correction for free surface on metacentric height [GM] and fluid mass on centre of gravity [KG]

5

Calculate centroids and solve problems of hydrostatics

5.1

Importance of area and volume centroids and methods of determining KG, LCF, LCB and bulkhead area centroids is explained

5.2

Calculations are performed to solve problems related to area and volume centroids

5.3

Methods of calculating pressures and loads on typical tank structures for different filling rates, accidental flooding or tank testing are explained

5.4

Use of flat panel stiffeners and shear force reactions applicable to vertical bulkheads is explained

5.5

Calculations are performed to solve problems in hydrostatics relating to pressure and loads on ship structures, including bulkheads, stiffeners and shear forces

6

Solve problems involving propellers and powering

6.1

Factors that influence the speed of advance are explained

6.2

Calculations are performed to solve problems of single screw vessels

6.3

Relationships between propulsive coefficient, quasi propulsive coefficient and related powers together with typical values of losses for transmission, hull and propeller are explained

6.4

Components of hull resistance are explained

6.5

Calculations are performed to show impact of resistance augmentation and thrust deduction factors on powering of full size vessels

6.6

Causes, effects and methods of reducing cavitation are explained

7

Calculate voyage and daily fuel consumptions

7.1

Admiralty coefficient for fuel consumption is stated taking account of values for ship speed, shaft power and displacement

7.2

Vessel fuel consumption is calculated using admiralty coefficient

7.3

Calculations are performed to show relationship between fuel consumption and displacement

7.4

Calculations are performed to show relationship between daily fuel consumption and speed

7.5

Calculations are performed to show relationship between voyage consumption, speed and distance travelled

7.6

Voyage and daily fuel consumption are calculated taking into account propulsion, domestic loads and fuel reserve requirements

8

Solve problems related to symmetrical flooding

8.1

Volume lost-volume gained relationship for flooded compartments is explained

8.2

Modified volume lost by compartment subdivision is explained using a horizontal flat

8.3

Modified volume lost by compartment permeability is explained, including consideration of cargo stowage factor and relative density details

8.4

Problems of symmetrical flooding of simple box-shaped and standard hull forms involving flooding above and below horizontal subdivisions and different permeabilities are solved

Required Skills and Knowledge

Elements describe the essential outcomes.

Performance criteria describe the performance needed to demonstrate achievement of the element.

1

Calculate shipboard areas, volumes and displacement

1.1

Simpson’s Rules are applied to find typical and non-conforming shipboard areas

1.2

Simpson’s Rules are applied to calculate water plane areas or transverse sectional areas to determine underwater volumes

1.3

Simpson’s Rules are applied to immersed tonnes per centimetre values to determine displacement

1.4

Tonnes per centimetre is applied to determine change in mean draught due to addition or removal of mass

2

Calculate coefficients of form and changes in draught associated with fluid density

2.1

Application of coefficients of form are identified and explained

2.2

Problems are solved involving coefficients of form

2.3

Impact of hull modification on hull form coefficients is explained

2.4

Problems of coefficients of form are solved following change in length by mid body insertion/removal

2.5

Relationship between underwater volume/draught and fluid density is explained

2.6

Application of freeboard markings for Load Line Rules is explained

2.7

Density correction formula is defined

2.8

Change in mean draught due to change in density is calculated

3

Solve stability problems

3.1

Effects of adding, removing and transferring mass on board or from a vessel are explained

3.2

Calculations are performed to solve problems involving suspended masses

3.3

Positive, neutral and negative stability are distinguish from each other

3.4

How centre of gravity is calculated for redistribution, addition and/or removal of masses is explained, including the use of derricks

3.5

Problems are solved involving vertical and horizontal movement of masses to calculate KG and GM for typical vessel loaded conditions, together with true shift in vessel centre of gravity between specified conditions and small angle transverse stability

3.6

Vessel righting moment and GZ are explained

3.7

Calculations are performed to solve problems of small angle transverse stability

3.8

Purpose of an Inclining Experiment is explained

3.9

Formula for determining initial stability characteristics is applied

3.10

Calculations are performed to solve problems using Inclining Experiments

4

Calculate loss of transverse stability due to fluid free surface

4.1

Principles of liquid free surface are explained

4.2

Principles of metacentric height are explained

4.3

Centre of gravity solid is distinguished from centre of gravity fluid

4.4

Application of the second moment of area using parallel axis theorem to obtain free surface moment of inertia and use of density correction between vessel and free surface fluids is explained

4.5

Calculations are performed to solve problems of liquid free surface for simple compartments, including correction for free surface on metacentric height [GM] and fluid mass on centre of gravity [KG]

5

Calculate centroids and solve problems of hydrostatics

5.1

Importance of area and volume centroids and methods of determining KG, LCF, LCB and bulkhead area centroids is explained

5.2

Calculations are performed to solve problems related to area and volume centroids

5.3

Methods of calculating pressures and loads on typical tank structures for different filling rates, accidental flooding or tank testing are explained

5.4

Use of flat panel stiffeners and shear force reactions applicable to vertical bulkheads is explained

5.5

Calculations are performed to solve problems in hydrostatics relating to pressure and loads on ship structures, including bulkheads, stiffeners and shear forces

6

Solve problems involving propellers and powering

6.1

Factors that influence the speed of advance are explained

6.2

Calculations are performed to solve problems of single screw vessels

6.3

Relationships between propulsive coefficient, quasi propulsive coefficient and related powers together with typical values of losses for transmission, hull and propeller are explained

6.4

Components of hull resistance are explained

6.5

Calculations are performed to show impact of resistance augmentation and thrust deduction factors on powering of full size vessels

6.6

Causes, effects and methods of reducing cavitation are explained

7

Calculate voyage and daily fuel consumptions

7.1

Admiralty coefficient for fuel consumption is stated taking account of values for ship speed, shaft power and displacement

7.2

Vessel fuel consumption is calculated using admiralty coefficient

7.3

Calculations are performed to show relationship between fuel consumption and displacement

7.4

Calculations are performed to show relationship between daily fuel consumption and speed

7.5

Calculations are performed to show relationship between voyage consumption, speed and distance travelled

7.6

Voyage and daily fuel consumption are calculated taking into account propulsion, domestic loads and fuel reserve requirements

8

Solve problems related to symmetrical flooding

8.1

Volume lost-volume gained relationship for flooded compartments is explained

8.2

Modified volume lost by compartment subdivision is explained using a horizontal flat

8.3

Modified volume lost by compartment permeability is explained, including consideration of cargo stowage factor and relative density details

8.4

Problems of symmetrical flooding of simple box-shaped and standard hull forms involving flooding above and below horizontal subdivisions and different permeabilities are solved

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions on at least one occasion and include:

applying relevant work health and safety/occupational health and safety (WHS/OHS) requirements and work practices

assessing own work outcomes and maintaining knowledge of current codes, standards, regulations and industry practices

identifying and applying relevant mathematical formulas and techniques to solve problems related to speed, fuel consumption and stability of commercial vessels

identifying and interpreting numerical and graphical information, and performing mathematical calculations related to shipboard areas and volumes, vessel displacement, ship dimensions, centre of gravity, vessel speed and fuel consumption

identifying, collating and processing information required to perform calculations related to speed, fuel consumption and stability of commercial vessels

imparting knowledge and ideas through oral, written and visual means

reading and interpreting written information needed to perform calculations related to the seaworthiness of commercial vessels

solving problems using appropriate laws and principles

using calculators in performing accurate and reliable mathematical calculations.

Evidence required to demonstrate competence in this unit must be relevant to and satisfy all of the requirements of the elements, performance criteria and range of conditions and include knowledge of:

admiralty and fuel coefficients

buoyancy

centre of gravity:

KG, VCG and LCG

calculations

density correction formula

displacement

draught alterations

fuel consumption calculations

hydrostatic pressure

intermediate principles of naval architecture

metacentre

principle of displacement

propellers and powering

ship:

displacement

measurements

stability

stability calculations

shipboard areas

shipboard volumes

Simpson’s Rules

structural members of a ship and the proper names of various parts

symmetrical flooding

tonnes per centimetre immersion (TPC)

traverse stability

trim and stress tables, diagrams and stress calculating equipment

vessel speed calculations

watertight integrity

WHS/OHS requirements and work practices.

Range Statement

Range is restricted to essential operating conditions and any other variables essential to the work environment.

Shipboard areas include one or more of the following:

bulkheads

elemental areas

water planes

Coefficients of form include one or more of the following:

block coefficient

midship section area coefficient

prismatic coefficient

waterplane area coefficient

Centre of gravity must include:

centre of gravity (KG)

longitundal centre of gravity (LCG)

vertical centre of gravity (VCG)

Speed of advance must include:

apparent and true slips

Taylor wake fraction

theoretical, apparent and true speeds

wake speed

Related powers must include:

delivered

effective

indicated

shaft

thrust

Hull resistance must include:

frictional

residuary

total

Shipboard areas include one or more of the following:

bulkheads

elemental areas

water planes